/*
 * Copyright 1999,2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.sf.webdav.methods;

public abstract class DeterminableMethod extends AbstractMethod {

    /**
     * Determines the methods normally allowed for the resource.
     * 
     * @param exists
     *                does the resource exist?
     * @param isFolder
     *                is the resource a folder?
     * @return all allowed methods, separated by commas
     */
    protected String determineMethodsAllowed(boolean exists, boolean isFolder) {
		StringBuffer methodsAllowed = new StringBuffer();
	    if (exists) {
	    	methodsAllowed.append("OPTIONS, GET, HEAD, POST, DELETE, TRACE, PROPPATCH, COPY, MOVE, LOCK, UNLOCK, PROPFIND");
			if (isFolder) {
			    methodsAllowed.append(", PUT");
			}
	    } else {
			methodsAllowed.append("OPTIONS, MKCOL, PUT, LOCK");
	    }
		return methodsAllowed.toString();
    }

}
